CN110227756B

CN110227756B - Plate punching die

Info

Publication number: CN110227756B
Application number: CN201910635000.1A
Authority: CN
Inventors: 毛先金
Original assignee: Schmidt Elevator Co ltd
Current assignee: Schmidt Elevator Co ltd
Priority date: 2019-07-15
Filing date: 2019-07-15
Publication date: 2024-02-27
Anticipated expiration: 2039-07-15
Also published as: CN110227756A

Abstract

The invention discloses a plate punching die, wherein the horizontal section of an upper die is U-shaped, a lower die is provided with a U-shaped die hole corresponding to the upper die, and the upper die is positioned right above the lower die and is just inserted into the U-shaped die hole of the lower die when the upper die moves downwards so as to punch a U-shaped part; the upper die and the lower die are both provided with a plurality of sliding grooves which are consistent in quantity, the T-shaped sliding blocks of the upper die are in sliding fit with the sliding grooves which are arranged in the pressing beams in the straight line direction of the arrangement of the upper die, a section of travel distance is reserved between the top surface of each T-shaped sliding block and the bottom of each sliding groove, all the lower dies can adjust the distance between each other through an adjusting mechanism, the upper ends of the lower dies are planes, the lower ends of the lower dies are inclined planes and incline downwards towards one side of the opening of the U-shaped structure of the U-shaped die hole, a conveying plate is arranged below the inclined planes in parallel with the inclined planes, and a strip-shaped notch which is arranged along the conveying direction of the U-shaped part is arranged at the output end of the bottom of the conveying plate. The die has high efficiency of punching and transferring finished products, and can fully utilize materials.

Description

Plate punching die

Technical Field

The invention belongs to the technical field of stamping, and particularly relates to a stamping tool for a U-shaped plate.

Background

In the manufacturing process of the elevator, a U-shaped piece similar to a U-shaped structure is needed, at present, the part is usually punched in a single piece, punching efficiency is low, collection of the U-shaped piece after punching is realized by manually and intensively carrying out stacking after intensively blanking, time and labor are wasted, and because the thickness of plates is different, the punching interval of the U-shaped piece is preferably different when each plate is punched, otherwise, edge crumpling, napping inequality and the like of the punched U-shaped piece are caused, the length of a material plate is different, excessive surplus of the material head after punching is often caused, and the utilization of the plate is insufficient.

Disclosure of Invention

The invention aims to solve the technical problems and provides a plate punching die which effectively solves the technical problems of low efficiency and insufficient utilization of plates.

The technical scheme of the invention is as follows: the plate punching die comprises an upper die and a lower die, wherein the horizontal section of the upper die is U-shaped, the lower die is provided with a U-shaped die hole corresponding to the upper die, and the upper die is positioned right above the lower die and is just inserted into the U-shaped die hole of the lower die when the upper die moves downwards so as to punch a U-shaped part;

the upper die and the lower die are both provided with a plurality of T-shaped sliding blocks, the top end of the upper die is fixedly connected with a T-shaped sliding block, the T-shaped sliding blocks are in sliding fit with sliding grooves which are arranged in the pressing beam along the linear direction of the arrangement of the upper die, a section of travel distance is reserved between the top surface of each T-shaped sliding block and the bottom of each sliding groove, a screw rod penetrates through all the T-shaped sliding blocks and is in threaded connection with each T-shaped sliding block, the threads on screw rod sections matched with the two adjacent T-shaped sliding blocks are opposite in rotation direction, and therefore the two adjacent T-shaped sliding blocks are mutually close to/far away from each other when the screw rod rotates; the bottom of the pressing beam is fixedly connected with a plurality of pairs of pressing blocks which are arranged in a front-back symmetrical way, a screw rod passes through a gap between each pair of pressing blocks, and the size of the stroke interval is required to ensure that the top surface of the T-shaped sliding block is not contacted with the bottom of the chute when the pressing blocks are connected with the upper end of the lower die;

all lower dies can adjust the interval between each other through adjustment mechanism, with go up the mould one-to-one, the upper end of lower die is the plane, and the lower extreme is the inclined plane and incline downwards towards the opening side slope of the U type structure of U type nib be equipped with the transfer board still parallel with it in the below of inclined plane, have one in the output department of transfer board bottom along the bar breach that U type spare direction of transmission offered is equipped with the support piece that reciprocates in this bar breach, when the U type spare slides down from the transfer board, the open end of U type spare just overlaps in the upper end portion that the support piece stretches out the bar breach, support U type spare when the support piece is followed bar breach and is continued to move forward, get into the fixed setting of place ahead get on the piece board, get piece board also have a U type breach and breach opening direction and support piece relative setting to leave U type spare on getting the piece board when again down after making the support piece get into the U type breach of piece board.

The invention has the beneficial effects that: according to the invention, a plurality of U-shaped pieces are punched simultaneously through the upper die or the lower die which are arranged in a straight line, the punched U-shaped pieces can automatically fall onto the conveying plate and are transmitted to the supporting piece, and the U-shaped pieces are taken and lifted through the cooperation of the supporting piece and the material taking plate. In addition, the upper die controlled by the screw rod and the lower die controlled by the adjusting mechanism enable the interval of the punched U-shaped parts to be adjustable, so that the punching interval can be flexibly selected when different plate thicknesses are achieved, better U-shaped parts can be obtained, for example, the thick U-shaped parts can be punched at a large interval, and for a block of plate, the rest plate materials can be punched fully after the proper interval is adjusted according to the real-time condition of processing, more U-shaped parts can be obtained to the maximum extent, and the measures enable the use of the plate materials to be more full and the utilization rate to be extremely high.

Drawings

FIG. 1 is a schematic diagram of the structure of the present invention.

Fig. 2 is a schematic diagram of the indentation of a sheet material during stamping according to the present invention.

Fig. 3 is a schematic diagram of an end face structure of a T-shaped slider slidably connected to a press beam.

Fig. 4 is a schematic diagram of the end face structure of the pressing beam and the T-shaped slider when the pressing beam presses the upper die.

Fig. 5 is a top view of the support of fig. 1 when the U-shaped member is placed in support.

Fig. 6 is a top view of the take off plate of fig. 1.

Description of element numbers: the die comprises an upper die 1, a lower die 2, a pressing beam 3, a T-shaped sliding block 4, a screw rod 5, a pressing block 6, a conveying plate 7, a supporting piece 8, a supporting part 9, a material taking plate 10, an adjusting mechanism 11, a U-shaped piece a, a plate material b to be punched, a distance D between two adjacent U-shaped pieces, a travel distance H and a distance K between two adjacent lower dies.

Detailed Description

Further advantages and effects of the present invention will become apparent to those skilled in the art from the disclosure of the present invention, which is described by the following specific examples.

The invention is further illustrated by the following examples in conjunction with the accompanying drawings:

as shown in fig. 1, a plate punching die mainly comprises an upper die 1 and a lower die 2, wherein the horizontal section of the upper die 1 is in a U shape, the lower die 2 is provided with a U-shaped die hole corresponding to the upper die 1, and the upper die 1 is positioned right above the lower die 2 and is inserted into the U-shaped die hole of the lower die 2 when the upper die 1 moves downwards so as to punch a U-shaped piece a.

The upper die 1 and the lower die 2 are provided with a plurality of T-shaped sliding blocks 4, the top end of the upper die 1 is fixedly connected with a T-shaped sliding block 4, the T-shaped sliding blocks 4 are in sliding fit with sliding grooves which are arranged in the pressing beam 3 along the linear direction of the arrangement of the upper die 1, a section of travel distance H is reserved between the top surface of each T-shaped sliding block 4 and the bottom of each sliding groove, a screw rod 5 penetrates through all the T-shaped sliding blocks 4 and is in threaded connection with each T-shaped sliding block, the threads on the screw rod 5 sections matched with the two adjacent T-shaped sliding blocks 4 are opposite in rotation direction, and therefore the two adjacent T-shaped sliding blocks 4 are mutually close to/far away when the screw rod 5 rotates. The bottom of the press beam 3 is fixedly connected with a plurality of pairs of press blocks 6 which are arranged in a front-back symmetrical way, the screw rod 5 passes through a gap between each pair of press blocks 6, the size of the stroke distance H is required to ensure that the top surface of the T-shaped slide block 4 is not contacted with the bottom of the chute groove when the press blocks 6 are connected with the upper end of the lower die 2, so that the cross beam is used for transmitting force to the upper die 1 through the press blocks 6 instead of the T-shaped slide block 4 during punching, the T-shaped slide block 4 and the screw rod 5 can be ensured, and design parameters of the T-shaped slide block and the screw rod 5 are particularly important, and the design parameters of the T-shaped slide block must be ensured during specific implementation.

All the lower dies 2 can adjust the distance between each other through the adjusting mechanism 11 so as to correspond to the upper dies 1 one by one, the adjusting mechanism 11 can be a hydraulic rod or other mechanisms capable of driving the lower dies 2 to integrally move so as to realize the distance K between two adjacent lower dies 2, and the K value is also required to be adaptively determined according to the actual shape and size of the lower dies 2. The upper end of the lower die 2 is a plane, the lower end is an inclined plane and inclines downwards towards one side of the opening of the U-shaped structure of the U-shaped die hole, and a conveying plate 7 is arranged below the inclined plane in parallel with the inclined plane, so that the bottom end of the lower die 2 is designed to be an inclined plane and the inclined direction is related to the notch direction of the U-shaped die hole, in order to fully ensure that the distance between the conveying plates 7 inclined according to the distance of each lower die 2 is kept constant or small enough, when the heights of the bottom ends of all lower dies 2 are consistent, the heights of the outlets of the U-shaped die holes are not consistent with the conveying plates 7, and the excessively high heights directly lead to the fact that the U-shaped part a inclines excessively or even overturns due to the fact that the limitation of the U-shaped die hole is not existed when the U-shaped part a falls out, so that the posture cannot be ensured to be consistent as much as possible, the conveying collection is difficult, the structural design is also important, and the situation is met when the structure is implemented. The output end of the bottom of the conveying plate 7 is provided with a strip-shaped notch along the conveying direction of the U-shaped piece a, a supporting piece 8 capable of moving up and down is arranged in the strip-shaped notch, when the U-shaped piece a slides down from the conveying plate 7, the opening end of the U-shaped piece a is just sleeved on the upper end part of the supporting piece 8 extending out of the strip-shaped notch, when the supporting piece 8 supporting the U-shaped piece a continuously moves forward along the strip-shaped notch, the supporting piece a enters a piece taking plate fixedly arranged in front, the piece taking plate is also provided with a U-shaped notch, the notch opening direction is opposite to the supporting piece 8, and the U-shaped piece a is left on the piece taking plate when the supporting piece 8 moves downwards after entering the U-shaped notch of the piece taking plate. For the driving mechanism of the supporting element 8, it may be an electrically controlled hydraulic rod or other existing elements that can be directly adopted by those skilled in the art, which will not be described herein, the action interval of each transferring U-shaped element a of the supporting element 8 is completed when the next U-shaped element a arrives, and in the implementation, an element such as a sensor may be used to detect whether the U-shaped element a slides to a predetermined position at the bottom end of the conveying plate 7, so that the supporting element 8 can flexibly and timely return to the U-shaped notch at the bottom of the conveying plate 7 for standby, and these automatic control actions are well known to those skilled in the art, and will not be described in detail in this embodiment.

During operation, the positions between the upper dies 1 and the lower dies 2 are adjusted to be in place, the upper dies 1 can be inserted into the lower dies 2, punching and forming are achieved, a U-shaped piece a is obtained, after falling from the U-shaped die holes, the U-shaped piece a is laid on the conveying plate 7, the U-shaped piece a is automatically sleeved on the supporting piece 8 and is brought into a U-shaped notch of the material taking plate 10 by the supporting part 9 of the supporting piece 8, and when the supporting piece 8 moves downwards as a whole, the U-shaped piece a is contacted with the notch edge of the material taking plate 10, so that the U-shaped piece a is rolled down by the material taking plate 10 and is left on the material taking plate 10 for later use.

In the above embodiment, the conveying plate 7 is preferably a belt conveying structure when needed, so that the conveying is smoother and faster. The pressing blocks 6 are preferably positioned at the positions close to the bottoms of the two sides of the U-shaped notch of the upper die 1, so that stable stress of the lower die 2 is ensured as much as possible. And to support 8, its upper end is supporting part 9, the horizontal plane contour line of supporting part 9 is U type and the breach department of U type is through straight line closed connection, horizontal plane contour line progressively reduces so that support 8 upper end forms certain draft taper in vertical direction from bottom to top, so the design can guarantee that U type spare a correctly overlaps on support 8, reduces the fault rate emergence. The common screw rod 5 mechanism is also suitable for the adjusting mechanism 11, so that the manufacturing is simple and the maintenance is convenient.

The above embodiments are merely illustrative of the principles of the present invention and its effectiveness, and are not intended to limit the invention. Modifications and variations may be made to the above-described embodiments by those skilled in the art without departing from the spirit and scope of the invention. Accordingly, it is intended that all equivalent modifications and variations of the invention be covered by the claims, which are within the ordinary skill of the art, be within the spirit and scope of the present disclosure.

Claims

1. The utility model provides a die-cut mould of panel which characterized in that: the upper die is positioned right above the lower die and is just inserted into the U-shaped die hole of the lower die when moving downwards so as to punch a U-shaped piece;

the lower dies can be adjusted in distance with each other through an adjusting mechanism so as to correspond to the upper dies one by one, the upper ends of the lower dies are planes, the lower ends of the lower dies are inclined planes and incline downwards towards one side of an opening of a U-shaped structure of a U-shaped die hole, a conveying plate is arranged below the inclined planes in parallel, a strip-shaped gap which is formed along the conveying direction of the U-shaped part is arranged at the output end of the bottom of the conveying plate, a supporting piece which can move up and down is arranged in the strip-shaped gap, when the U-shaped part slides down from the conveying plate, the opening end of the U-shaped part is just sleeved on the upper end part of the supporting piece, which extends out of the strip-shaped gap, and when the supporting piece for supporting the U-shaped part moves forwards along the strip-shaped gap, the supporting piece enters into a fetching plate which is fixedly arranged in front, the fetching plate is also provided with a U-shaped gap, and the opening direction of the U-shaped gap is opposite to the supporting piece, so that the U-shaped part is left on the fetching plate when the supporting piece moves downwards after entering the U-shaped gap of the fetching plate;

the conveying plate is of a belt conveying structure;

the pressing blocks are positioned at the positions, close to the bottoms, of the two sides of the U-shaped notch of the upper die.

2. The panel punching die according to claim 1, wherein: the upper end of the support piece is a support part, the horizontal plane contour line of the support part is U-shaped, and the notches of the U-shaped are in closed connection through straight lines, and the horizontal plane contour line gradually reduces from bottom to top so as to enable the upper end of the support piece to form a certain draft taper in the vertical direction.

3. The panel punching die according to claim 1, wherein: the adjusting mechanism is a screw rod mechanism.